Mowing-machine frame



(No Model.) 2 Sheets-Sheet 1.

G. H. BARTLETT. MOWIING MACHINE FRAME.

No. 427,537. Patented May 13, 1890.

Z204 TTORNEY.

m: News PETERS cm, mo-rrmmum WAS wwwwwwwwww c.

No Mcdel.) 2 Sheets-Sheet 2.

G. HQ BARTLETT.

MOWING MACHINE FRAME.

Patented May 13, 1890.

his A TTORNEK UNITED STATES PATENT ()EEIcE.

GEORGE HERMAN BARTLETT, OF HOOSIOK FALLS, NElV YORK.

MOWlNG-MACHINE. FRAME.

SPECIFICATION forming part of Letters Patent No. 427,537, dated May 13, 1890.

Application filed February 24, 1890. Serial No. 341,561. (No model.) i

To all whom it may concern:

Be it known that I, GEORGE HERMAN BART- LETT, a citizen of the United States, residing at Hoosick Falls, county of Rensselaer, and State of New York, have invented certain new an d useful Improvements in Frames for Mowing-Machines, of which the following is a full, clear, and exact description,reference being had to the accompanying drawings, forming a part of this specification. r

The invention has for its object the provision of a frame for a mowing-machine which will be cheap to manufacture,lighter and less cumbersome than those now in use, and which will be at the same time durable and adapted to resist the strains incident to machines of this class. To this end a cast frame is provided, in one arm of which the axle has its bearing and in a second right-angled arm the crank-shaft has its bearings. This cast frame is united to the shoe-supportby tubularbraces, preferably of gas-pipe, extending from the grass side of the cast frame, from the angle of the axle and crankshaft bearing, and from the forward end of the crank-shaft bearing.

' The cast frame is also provided with rearwardly-extending arms to support the countershaft, and also with the rearwardly-extending lugs, between which is supported the pole or tongue frame.

Referring to the accompanying drawings, in which similar letters of reference indicate like parts, Figure 1 is a top plan view of a mowingmachine constructed with my improved frame. Fig. 2 is a top plan view of my improved frame. Fig. 3 is an inverted View of the cast portion of the frame. Fig. 4 is an inverted View of that portion of the frame which supports the shoe.

The cast portion of the frame is formed with a tubular portion A, which provides a bearing for the axle, to which are connected the driving and carrying wheels B B by any suitable pawl-and ratchet mechanism. Se-

cured to the axle is the large internal gear B, which meshes with a pinion secured to a counter-shaftD. The counters'haftD is j ournaled in suitable bearings A A, extending rearwardly from the portion A of the frame and cast integral therewith. Loosely mounted on the shaft D is the gear-wheel D, which meshes with a pinion D secured to the rear end of the crankshaft D ,which has its bearing in an arm A extending forwardly from the tubular bearingA and cast integral therewith. The geauwheel D is provided with a clutch-face b, and a longitudinally-sliding collar I), also provided with a clutch-face, is secured to the shaft D. The clutch-collar b, by means of the lever 11 may be thrown into and out of engagement with the clutch on the gear-wheel D, thus causing the latter to turn with the shaft or remain idle thereon.

The shoe-support E is curvilinear in form and has the shoe E, to which is secured the finger-bar E pivoted thereto at e e. The

shoe-support E is provided on its upper side with a recess a and at its under side with the two recesses e e. The cast portion of the frame is formed with an outwardly or forwardly extending arm A recessed on its under side to receive one end of the tubular brace a, securely bolted thereto at .7. The other end of the tubular brace a fits into the recess 6 in the shoe-support E, and is bolted thereto at 7t.

At the angle of the bearings A A a diagonal arm A also recessed on its under side to receive the tubular brace ct,bolted thereto at 71, 71 extends toward the shoe-support E. The brace a fits into the recess 6 in the shoe-support, and is by the bolts h and its secured thereto. The draft-hook & is bolted to the brace a. From the arm A extends outwardly and forwardly an offsetting arm A recessed on its under side to receive the tubular brace a secured thereto by the bolt lbs, and in the recess e in the shoe-support by the bolt ]L7. The offsetting arm A is united to the arm A by the strengthening-rib f, and the arms A A A of the cast frame are severally united and strengthened by the rib f. The rod a extends around in front of the crank-wheel H, which carries the pitman F and forms a shield therefor. The cast frame A is furthermore provided with the lugs g 9, between which is pivoted the pole-frame.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The mowing-machine frame herein described, consisting of a cast frame provided with an ax1e-bearin g, the crank-shaft-supporting arm at right angles thereto, rearwardlyextending arms supporting the counter-shaft, an offsetting arm from the forward end of the crank-shaft support, an arm extending diagonally from the junction of crank-shaft support and the axle-bearing, an arm extending from the grass side of the axle-bearin g, the shoe-support, and braces secured to the latter, to the offsetting arm from the crank-shaft support, to the diagonal arm at the junction of the latter and the tubular axle-bearin g, and to the arm at the cutting or grass side of the machine.

2. The combination, with the curved shoesupport, of the triangular integral frame providedwith the axle-bearin gandthe crank-shaft support at right angles thereto, an offsetting arm from the forward end of the crank-shaft,

and the tubular braces secured to the shoesupport, to the ofisetting arm from the crankshaft support, to the integral frame at the junction of the axle-bearing and crank-shaft support, and to the tubular axle-bearing at the grass or cutting side of the machine, substantially as and for the purpose specified.

3. The combination, with the integral frame composed of the tubular aXle-bearin g A,crankshaft bearing A arms A ,A and A, and the strengthening-rib f, of the shoe-support E and braces a a a substantially as and for the purpose specified.

In witness whereof I have hereunto hand this 4th day of February, 1890.

GEORGE HERMAN BARTLETT.

Witnesses:

WALTER W. LOVEGROVE, FRANK A. BovIE.

set my 

